I'm helping a friend repair his Hobie 16, and I have a question about the baseplate / pad for the swiveling mainsheet cam cleat.

We had to order a new baseplate, part #1162 and it came today. I understand how to get the rivet out in order to replace the base, but how do you re-attach the base? I thought I'd have to rivet it back in, but there's an extra screw in the parts kit that came...can I use that screw to mount it? Or do I really need to rivet it?

If riveting is the best way to go, is there a specific type of rivet I should use?